<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            clearable
            v-model="queryParams.query"
            @clear="__getGoodslist"
          >
            <el-button slot="append" icon="el-icon-search" @click="__getGoodslist"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 商品列表 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="110"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="100"></el-table-column>
        <el-table-column label="创建时间" width="240">
          <template slot-scope="scope">{{scope.row.add_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="240">
          <template slot-scope="scope">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑</el-button>
            <el-button
              type="danger"
              size="mini"
              icon="el-icon-delete"
              @click="removeById(scope.row.goods_id)"
            >删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 页码区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryParams.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryParams.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  created() {
    // 获取商品数据
    this.__getGoodslist()
  },
  data() {
    return {
      // 参数对象
      queryParams: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      total: 0
    }
  },
  methods: {
    // -----------发送网络请求 -------------------
    async __getGoodslist() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryParams
      })
      if (res.meta.status !== 200) {
        return this.$showToast.error('获取商品列表失败')
      }
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    // ---------------- 监听事件 ---------------
    handleSizeChange(page) {
      this.queryParams.pagesize = page
      this.__getGoodslist()
    },
    handleCurrentChange(page) {
      this.queryParams.pagenum = page
      this.__getGoodslist()
    },
    async removeById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)

      if (confirmResult !== 'confirm') {
        return this.$showToast.info('已取消删除')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$showToast.error('删除失败')
      }
      this.$showToast.success('删除成功')
      this.__getGoodslist()
    },
    // t跳转到添加商品页
    goAddPage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang='less' scoped>
</style>
